River-crossing leveling sighting board

Abstract

The utility model belongs to the technical field of river-crossing leveling, and particularly relates to a river-crossing leveling sighting board which comprises a base, a positioning mechanism and an observation channel, the positioning mechanism comprises a fixing part and an adjusting and positioning part; a placing cavity is formed in the fixing part; one end of the adjusting and positioning part is movably connected to the fixing part, and the other end of the adjusting and positioning part is movably arranged in the containing cavity. A clamping gap is formed between the other end of the adjusting and positioning part and the fixing part; the fixing part is connected to the base; the observation channel penetrates through the base and the fixing component, and the observation channel is communicated with the clamping gap. According to the utility model, the operation convenience can be improved, and the reading measurement structure is simplified, so that the measurement use efficiency is improved, and the structure cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cross-river leveling measurement, in particular to a cross-river leveling measurement target plate. Background Art

[0002] River-crossing leveling plays a crucial role in elevation measurement, being essentially trigonometric leveling. It's well known that atmospheric refraction is a significant factor contributing to errors in trigonometric leveling. Therefore, to minimize this error, standards require that river-crossing leveling be conducted simultaneously, whenever possible, in both directions. However, in current practice, simultaneous observations are difficult to achieve, as the prism on one bank cannot be seen from the other. Typically, measurements are completed on one bank before the prism is rotated to allow for measurement on the other bank.

[0003] However, traditional height measurement instruments mainly use indirect height measurement methods such as measuring with inclined steel rulers, calculating instrument height, or measuring height using the line of sight method, which brings large height measurement errors, thus affecting measurement accuracy and efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a cross-river leveling target plate to solve the problems of poor measurement accuracy and efficiency in the existing technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cross-river leveling target, comprising a base, a positioning mechanism and an observation channel; the positioning mechanism comprises a fixed component and an adjustable positioning component; a placement cavity is provided in the fixed component; one end of the adjustable positioning component is movably connected to the fixed component, and the other end of the adjustable positioning component is movably set to the placement cavity; and a clamping gap is provided between the other end of the adjustable positioning component and the fixed component; the fixed component is connected to the base; the observation channel runs through the base and the fixed component, and the observation channel is communicated with the clamping gap.

[0007] Preferably, the fixing component includes a horizontal fixing plate and a first vertical plate and a second vertical plate connected to both side ends of the horizontal fixing plate; the observation channel passes through the horizontal fixing plate; and the placement cavity is formed between the horizontal fixing plate, the first vertical plate and the second vertical plate; the adjustment and positioning component is movably connected to the second vertical plate and can move toward the first vertical plate.

[0008] Preferably, at least one positioning hole is provided on the first vertical plate; the positioning hole is communicated with the clamping gap.

[0009] Preferably, the adjustment and positioning component includes an abutment block, a connecting rod and a driving block; one end of the connecting rod passes through the fixed component and is connected to the driving block; the other end of the connecting rod is connected to the abutment block; and the abutment block can move toward the fixed component.

[0010] Preferably, a center wire is provided on a surface of one side of the base away from the fixing component; the center wire spans the width direction of the base and is relatively arranged at two side ends of the observation channel.

[0011] Preferably, the base is provided with at least one first mounting hole; and the fixing component is provided with a second mounting hole corresponding to the first mounting hole.

[0012] Preferably, at least one adhesive component is provided on a surface of a side of the base away from the fixing component; the horizontality of the adhesive component is used to be parallel to the scale line of the corresponding ruler.

[0013] Preferably, the relationship between the area S1 of the adhesive component projected onto the base and the area S2 of the base is: S1 = (70% to 85%) * S2.

[0014] The beneficial effect of the present invention is that the technical solution adopts the placement cavity of the positioning mechanism to install the ruler, and then clamps and positions the ruler by adjusting the positioning component, and then quickly reads the position of the ruler through the observation channel, thereby improving the convenience of operation and simplifying the reading measurement structure, thereby improving the measurement efficiency and reducing the cost of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following will refer to the attached Figures 1 to 3 To describe the features, advantages and technical effects of exemplary embodiments of the present invention.

[0016] Figure 1 A cross-sectional view of a target plate for leveling across a river according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of a cross-river leveling target according to an embodiment of the present invention;

[0018] Figure 3 The figure is a structural schematic diagram of a positioning mechanism for a cross-river leveling target plate according to an embodiment of the present invention.

[0019] In the figure: 1-base; 11-adhesive component; 12-first mounting hole; 13-fixing column; 14-middle wire; 2-positioning mechanism; 21-fixing component; 211-horizontal fixing plate; 212-first vertical plate; 213-second vertical plate; 214-positioning hole; 215-second mounting hole; 22-adjusting positioning component; 221-abutment block; 222-connecting rod; 223-driving block; 224-assembly surface; 201-placing cavity; 3-observation channel. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0021] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0022] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of multiple situations. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0024] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0025] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0026] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0027] The following is combined with Figures 1 to 3 The present invention is further described in detail, but is not intended to limit the present invention.

[0028] like Figure 1 As shown, in one embodiment of the present invention, the cross-river leveling target comprises a base 1, a positioning mechanism 2 and an observation channel 3; the positioning mechanism 2 comprises a fixing part 21 and an adjusting positioning part 22; a placement cavity 201 is provided in the fixing part 21; one end of the adjusting positioning part 22 is movably connected to the fixing part 21, and the other end of the adjusting positioning part 22 is movably set to the placement cavity 201; and a clamping gap is provided between the other end of the adjusting positioning part 22 and the fixing part 21; the fixing part 21 is connected to the base 1; the observation channel 3 passes through the base 1 and the fixing part 21, and the observation channel 3 is connected to the clamping gap. Wherein, the base 1 is a substrate, which can be a rectangular, square, or quadrilateral plate.

[0029] The technical solution of the present invention is to install the ruler by adopting the placement cavity of the positioning mechanism, and then clamp and position the ruler by adjusting the positioning component, and then quickly read the position of the ruler through the observation channel, thereby improving the convenience of operation and simplifying the reading measurement structure, thereby improving the measurement efficiency and reducing the cost of the structure.

[0030] Specifically, in some embodiments, Figure 1 and2 As shown, a central thread 14 is provided on the side surface of the base 1 away from the fixing member 21; the central thread 14 spans the width direction of the base 1 and is relatively arranged at both sides of the observation channel 3. Figure 2 As shown, the center wire 14 is relatively arranged at the left and right ends of the observation channel 3. This structure makes it possible to obtain the measured data more intuitively by making the horizontal center wire 14 parallel to the scale line of the ruler, thereby improving the accuracy of the measurement.

[0031] Specifically, in some embodiments, Figure 2 and 3 As shown, the base 1 is provided with at least one first mounting hole 12; the fixing member 21 is provided with a second mounting hole 215 corresponding to the first mounting hole 12. Figure 2 As shown, the base 1 is further provided with a fixing post 13; the fixing post 13 is respectively connected to the first mounting hole 12 and the second mounting hole 215 to connect the base 1 to the fixing component 21. Furthermore, the outer wall of the fixing post 13 is in close contact with the inner wall of the first mounting hole 12 and the inner wall of the second mounting hole 215; alternatively, the fixing post 13 is threadedly connected to the inner wall of the first mounting hole 12 and the inner wall of the second mounting hole 215; alternatively, the fixing post 13 is welded to the inner wall of the first mounting hole 12 and the inner wall of the second mounting hole 215. This structure, through the first mounting hole 12 and the second mounting hole 215, further improves the assembly stability between the two, ensures convenient assembly, and effectively reduces assembly costs.

[0032] Specifically, in some embodiments, Figure 1 and 2 As shown, at least one adhesive component 11 is provided on a side of the base 1 facing away from the fixing component 21. The horizontality of the adhesive component 11 is designed to be parallel to the scale lines of the corresponding ruler. The adhesive component 11 may be a tape. The relationship between the area S1 projected onto the base 1 by the adhesive component 11 and the area S2 of the base 1 is: S1 = (70% to 85%) * S2. This structure uses multiple sets of adhesive components 11 as reference lines for the measurement readings of the observation channel 3, allowing for more intuitive acquisition of measured data and improving measurement accuracy.

[0033] Specifically, in some embodiments, Figure 1 and 3As shown, the fixing component 21 includes a horizontal fixing plate 211 and a first vertical plate 212 and a second vertical plate 213 connected to both sides of the horizontal fixing plate 211; the observation channel 3 passes through the horizontal fixing plate 211; and the placement cavity 201 is formed between the horizontal fixing plate 211, the first vertical plate 212 and the second vertical plate 213; the adjustment and positioning component 22 is movably connected to the second vertical plate 213 and can move toward the first vertical plate 212. Figure 3 As shown, a U-shaped structure with an observation channel 3 running through the middle is formed between the horizontal fixing plate 211, the first vertical plate 212, and the second vertical plate 213. This structure can improve the assembly stability of the scale through the U-shaped limit positioning structure and simplify the overall structure, thereby improving measurement efficiency and reducing structural costs.

[0034] Specifically, in some embodiments, Figure 3 As shown, the first vertical plate 212 is provided with at least one positioning hole 214 , which is in communication with the clamping gap. The positioning holes 214 are disposed at both sides of the fixing member 21 opposite to the adjusting positioning member 22 .

[0035] Specifically, in some embodiments, Figure 1 and 3 As shown, the positioning adjustment component 22 includes an abutment block 221, a connecting rod 222, and a driving block 223. One end of the connecting rod 222 passes through the fixed component 21 (the second vertical plate 213) and is connected to the driving block 223. The other end of the connecting rod 222 is connected to the abutment block 221. The abutment block 221 is movable toward the fixed component 21 (the first vertical plate 212). The abutment block 221 may be a rubber block; this structure increases friction between the two, thereby improving the stability of the positioning assembly.

[0036] Specifically, in some embodiments, Figure 3 As shown, the surface of the connecting rod 222 is provided with an assembly surface 224; the assembly surface 224 is detachably connected to the fixing component 21 (the second vertical plate 213). The assembly surface 224 is a threaded surface. Furthermore, the assembly surface 224 is provided with a scale line that spans the length of the surface of the connecting rod 222.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0038] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present invention.

Claims

1. A target for leveling across a river, characterized by: It includes a base, a positioning mechanism and an observation channel; the positioning mechanism includes a fixing component and an adjustment positioning component; a placement cavity is provided in the fixing component; one end of the adjustment positioning component is movably connected to the fixing component, and the other end of the adjustment positioning component is movably set to the placement cavity; and a clamping gap is provided between the other end of the adjustment positioning component and the fixing component; the fixing component is connected to the base; the observation channel runs through the base and the fixing component, and the observation channel is connected to the clamping gap.

2. The cross-river leveling target according to claim 1, characterized in that: The fixing component includes a horizontal fixing plate and a first vertical plate and a second vertical plate connected to both side ends of the horizontal fixing plate; the observation channel passes through the horizontal fixing plate; and the placement cavity is formed between the horizontal fixing plate, the first vertical plate and the second vertical plate; the adjustment and positioning component is movably connected to the second vertical plate and can move toward the first vertical plate.

3. The cross-river leveling target according to claim 2, characterized in that: At least one positioning hole is provided on the first vertical plate; the positioning hole is communicated with the clamping gap.

4. The cross-river leveling target according to claim 1 or 2, characterized in that: The adjustment and positioning component includes an abutment block, a connecting rod and a driving block; one end of the connecting rod passes through the fixed component and is connected to the driving block; the other end of the connecting rod is connected to the abutment block; and the abutment block can move toward the fixed component.

5. The cross-river leveling target according to claim 1, characterized in that: A center wire is provided on a surface of one side of the base away from the fixing component; the center wire spans the width direction of the base and is relatively arranged at two side ends of the observation channel.

6. The cross-river leveling target according to claim 1, characterized in that: The base is provided with at least one first mounting hole; the fixing component is provided with a second mounting hole corresponding to the first mounting hole.

7. The cross-river leveling target according to claim 1, characterized in that: At least one adhesive component is provided on a side surface of the base away from the fixing component; the horizontality of the adhesive component is used to be parallel to the scale line of the corresponding ruler.

8. The cross-river leveling target according to claim 7, characterized in that: The relationship between the area S1 of the adhesive component projected onto the base and the area S2 of the base is: S1 = (70% to 85%) * S2.

Images